Ich habe ein Gerüst genannt Kontakte erstellt und gab ihm die EinträgeWie kann ich ein Formular (Scaffold) mit ROR in eine Indexseite einbetten?
Name: string Telefon: string E-Mail: string
Ich mag das Formular sichtbar auf der Indexseite für die App-Nutzer zu senden.
Momentan befindet sich das leere Formular in localhost: 3000/contacts/new und nach der Einreichung zeigt die App die übermittelten Informationen an.
Erstens, wie kann ich das Formular in die Indexseite einbetten?
index.html.erb
<p id="notice"><%= notice %></p>
<h1>Contacts</h1>
<table>
<thead>
<tr>
<th>Name</th>
<th>Email</th>
<th>Phone</th>
<th>Message</th>
<th colspan="3"></th>
</tr>
</thead>
<tbody>
<% @contacts.each do |contact| %>
<tr>
<td><%= contact.name %></td>
<td><%= contact.email %></td>
<td><%= contact.phone %></td>
<td><%= contact.message %></td>
<td><%= link_to 'Show', contact %></td>
<td><%= link_to 'Edit', edit_contact_path(contact) %></td>
<td><%= link_to 'Destroy', contact, method: :delete, data: { confirm: 'Are you sure?' } %></td>
</tr>
<% end %>
</tbody>
</table>
<br>
<%= render 'contacts/form' %>
<%= link_to "Apple", {:controller => 'contacts', :action => 'apple'} %>
<%= link_to 'New Contact', new_contact_path %>
_form.html.erb
<%= form_for(contact) do |f| %>
<% if contact.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(contact.errors.count, "error") %> prohibited this contact from being saved:</h2>
<ul>
<% contact.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :name %>
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :email %>
<%= f.text_field :email %>
</div>
<div class="field">
<%= f.label :phone %>
<%= f.text_field :phone %>
</div>
<div class="field">
<%= f.label :message %>
<%= f.text_area :message %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
contacts_controller.rb
class ContactsController < ApplicationController
before_action :set_contact, only: [:show, :edit, :update, :destroy]
# GET /contacts
# GET /contacts.json
def index
@contacts = Contact.all
end
# GET /contacts/1
# GET /contacts/1.json
def show
end
# GET /contacts/new
def new
@contact = Contact.new
end
# GET /contacts/1/edit
def edit
end
# POST /contacts
# POST /contacts.json
def create
@contact = Contact.new(contact_params)
respond_to do |format|
if @contact.save
format.html { redirect_to @root_path, notice: 'Contact was successfully created.' }
format.json { render :show, status: :created, location: @contact }
else
format.html { render :new }
format.json { render json: @contact.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /contacts/1
# PATCH/PUT /contacts/1.json
def update
respond_to do |format|
if @contact.update(contact_params)
format.html { redirect_to @contact, notice: 'Contact was successfully updated.' }
format.json { render :show, status: :ok, location: @contact }
else
format.html { render :edit }
format.json { render json: @contact.errors, status: :unprocessable_entity }
end
end
end
# DELETE /contacts/1
# DELETE /contacts/1.json
def destroy
@contact.destroy
respond_to do |format|
format.html { redirect_to contacts_url, notice: 'Contact was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_contact
@contact = Contact.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def contact_params
params.require(:contact).permit(:name, :email, :phone, :message)
end
end
Sein geben einen Fehler - undefiniert lokale Variable oder Methode 'Kontakt‘ –